Industrial electronic current transducer LEM GO 20 SME with galvanic isolation and low profile design

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Product Description

LEM GO-SME Series Current Transducer

The GO-SME series is a range of current transducers designed for the electronic measurement of DC, AC, and pulsed currents. They provide galvanic separation between the primary and secondary circuits, making them ideal for applications requiring high insulation and immunity to external interference. Their extremely low profile and small size make them space-saving solutions for various electronic systems.

Product Attributes

Brand: LEM
Origin: Switzerland
Certifications: IEC 61800-5-1, IEC 62109-1, IEC 60950-1, UL 1577, AEC-Q100
Application Domains: Industrial

Technical Specifications

Parameter	GO 10-SME	GO 20-SME	Conditions
Primary nominal RMS current (IP N)	10 A	20 A
Primary current, measuring range (IP M)	-25 to 25 A	-50 to 50 A
Supply voltage (UC)	4.5 to 5.5 V	4.5 to 5.5 V
Current consumption (IC)	20 to 26 mA	20 to 26 mA
Nominal sensitivity (SN)	80 mV/A	40 mV/A
Electrical offset voltage @ IP N = 0 (UO E)	-5 to 5 mV	-5 to 5 mV	TA = 25 C, Uout - Uref @ Uref = 2.5 V
Electrical offset current referred to IP N (IO E)	-62.5 to 62.5 mA	-62.5 to 62.5 mA	TA = 25 C
Delay time to 90 % of final output (tD 90)	2 s	2 s	for IP N step
Delay time to 10 % of final output (tD 10)	1.5 s	1.5 s	for IP N step
Frequency bandwidth (-3 dB)	300 KHz	300 KHz	TA = 25 C
Noise voltage spectral density (uno)	14.5 V/Hz	7 V/Hz	NBW = 1 kHz 100 kHz
Sensitivity error (S)	-1 to 1 %	-1 to 1 %	Factory adjustment, @ 25 C
Linearity error (L) 0 IP N	-0.3 to 0.3 % of IP N	-0.3 to 0.3 % of IP N
Linearity error (L) 0 IP M	-0.6 to 0.6 % of IP M	-0.6 to 0.6 % of IP M
Ambient operating temperature (TA)	-40 to 125 C	-40 to 125 C
Ambient storage temperature (TA st)	-55 to 165 C	-55 to 165 C
Insulated test voltage (Ud)	2500 V RMS	2500 V RMS	50 Hz, 1 min (IEC 60664-1, UL 1577, IEC 60950-1)
Impulse withstand voltage (UNi)	4000 V	4000 V	1.2/50 s (IEC 61800-5-1, IEC 62109-1, IEC 60950-1)
Clearance (pri. - sec.) (dCI)	4 mm	4 mm	Shortest distance through air
Creepage distance (pri. - sec.) (dCp)	6 mm	6 mm	Shortest path along body
Comparative tracking index (CTI)	600	600